Circuit breakers



FIG. 1 is a perspective view of a first embodiment of the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left view thereof;

FIG. 7 is a right view thereof;

FIG. 8 is a perspective view of a second embodiment of the new design;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a top view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a left view thereof; and,

FIG. 14 is a right view thereof.

The broken line portions of the figure drawings are included to showportions of the article that form no part of the claimed design.

CLAIM The ornamental design for circuit breakers, as shown anddescribed.